Abstract: The present disclosure provides a container storage system including base tray with a flat platform having a polygonal shape and an array of spaced-apart holes, the flat platform defining a perimeter edge. The base tray also includes a substrate beneath the flat platform. The substrate defines a peripheral edge and a sidewall extends upward from the peripheral edge. A plurality of flexible containers are on the flat platform. Each flexible container has four panels, the four panels forming a body portion, a neck portion with a closure, and a tapered transition portion between the body portion and the neck portion. Each flexible container is inverted such that the neck portion extends downward through a respective hole and the tapered transition portion contacts the flat platform to support the inverted flexible container. One panel of at least one inverted flexible container contacts a panel of another inverted flexible container.